Lewis and Clark, led an expedition to survey the land West of the Mississippi,  request of President Thomas
Jefferson. The land that they were exploring was known as Louisiana Territory, that had been purchased from France in
1803. Lewis, Clark and the rest of their expedition began their journey
near St. Louis, Missouri, in May 1804. This group—often called the Corps
of Discovery by historians—faced nearly every obstacle and hardship imaginable on their trip. 
        
             
        
        
        
The cause of The Thirty Year War is that the Holy Roman Empire had conflict<span> with the Protestant. </span>France <span>fought </span>Spain<span> and the Holy Roman Empire for Europe Leadership. The effect of the war is that Sweden,</span>France<span> and their allies gained new territory.</span>
        
             
        
        
        
Demographics is statistical data of a population. This can include how many people of each gender in a certain population, the occupations of the people, and basically anything that is statistical data. 
 
        
             
        
        
        
Answer:
The absence of armed fight against the mother country (Spain and Portugal), and the result of each independence. 
Explanation:
The main characteristic of the independence movements of the Spanish colonies is that in almost all there was a war between the colonists and colonizers that dragged on for some years and ended with the victory of the colonists. It was like that in Chile, Uruguay, Argentina, and Bolivia. In Brazil, <u><em>there were several conflicts during the Independence process, but none directly influenced the Declaration of Independence.</em></u>
The main difference between the Independence movements of Brazil, Argentina, Uruguay, and Chile is the result achieved by each country. In Argentina, Chile, and Uruguay, declarations of Independence took these countries directly to the republican regime, while <u><em>in Brazil there was only a political break with the metropolis maintaining the entire system that was in force during the colony.</em></u>
 
        
             
        
        
        
The messages the government was trying to send in the film "Duck and Cover" were: 
- surviving the atomic bomb
- surviving the atomic bomb attack depends in being prepared and knowing what to do. 
The phrase "duck and cover" meant putting one's self into duck position and covering. The idea behind the saying was that if one "ducked and covered", one would be able to survive an atomic bomb. It was released in 1952 during the Cold War, when there were threats that the Soviet Union would drop an atomic bomb on American territory.